:root {
  --bg: #090d08;
  --green: #9bbc0f;
  --mid: #8bac0f;
  --dark: #306230;
  --ink: #0f380f;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at 50% 12%, rgba(139, 172, 15, 0.12), transparent 45%),
    var(--bg);
  color: var(--green);
  font-family: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
  overflow: hidden;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
}

#game {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  inset: 0;
  padding: 18px 12px 220px;
}

#game canvas {
  width: min(92vw, 62vh, 640px);
  height: auto;
  aspect-ratio: 160 / 144;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  border: 1px solid #2d441c;
  border-radius: 10px;
  box-shadow:
    0 0 0 6px #0d140a,
    0 18px 50px rgba(0, 0, 0, 0.55);
  background: var(--green);
}

#back {
  position: fixed;
  top: max(10px, env(safe-area-inset-top));
  left: 12px;
  z-index: 20;
  color: var(--mid);
  background: rgba(9, 13, 8, 0.7);
  border: 1px solid #2d441c;
  border-radius: 6px;
  padding: 5px 8px;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-decoration: none;
}

#controller {
  opacity: 1;
}

#controller.controller-on {
  display: block;
}

#controller_dpad:before,
#controller_left,
#controller_right,
#controller_up,
#controller_down {
  background: #1d2a16;
  border: 1px solid #3f5a2a;
}

#controller_dpad:before {
  background: #2a3d1e;
}

.roundBtn {
  color: var(--ink);
  background: var(--green);
  border: 1px solid #c7e83a;
  box-shadow: 0 4px 0 #3f5a2a;
  font-size: 26px;
  line-height: 64px;
}

.capsuleBtn {
  color: var(--green);
  background: #1d2a16;
  border: 1px solid #3f5a2a;
  box-shadow: 0 3px 0 #080c06;
  letter-spacing: 0.1em;
}

#controller_select {
  display: none;
}

#controller_start {
  right: 24px;
}

#controller_b {
  right: 100px;
}

#controller_a {
  right: 20px;
}

@media only screen and (min-width: 300px) and (orientation: landscape) {
  #game {
    padding: 12px 190px;
  }

  #game canvas {
    width: min(58vw, 88vh);
  }

  #controller {
    opacity: 0.85;
  }
}

@media only screen and (max-width: 500px) and (max-height: 400px) {
  #controller {
    display: block;
  }
}